A color picker you can actually use - sRGB and Display P3, an OKLCH-aware hue ramp and every notation CSS Color 4 can print. It is a copy of the one in Paper.
Improvements
Preferences now open in a dialog instead of a nested menu - the same panel from the account menu and from the gear on free lessons.
New Text size setting for Reader mode - the default plus two larger steps. Examples keep their size.
Jul 25, 2026
Improvements
Raised the contrast of secondary text across the app - the lighter greys were failing WCAG AA in light theme. Lesson body copy now sits a step brighter in dark.
New Reader mode preference: strips a lesson to the text - no contents rail, no card edge, a narrower column.
Free lessons
Preferences and theme are now reachable without an account - the gear in the bottom-right corner of any free lesson.
Jul 24, 2026
Improvements
Reading preferences in the account menu now say what they change - one short line under every toggle.
Invisible Details is live. The course opens with 13 notes on the principles and 6 practice breakdowns of real components - and it will keep growing from here.